Safety attachment for foot stamping and other presses.



W. W. SHINSKI.

SAFETY ATTACHMENT FOR FOOT STAMPING AND OTHER PRESSES.

APPLIOATION FILED MAY 15, 1913,.

4 M W. on mm i W w m m a 2 m. M. D i Q. 6. m 5 4 0 1 1 W. W. SHINSKI.SAFETY ATTACHMENT FOR FOOT STAMPING AND OTHER PRESSES.

APPLICATION FILED MAY 15. 1913.

Patented July 28, 1914,

2 SHEETS-SHEET 2.

3 n uewtoz WALTER W. SHINSKI, OF LA SALLE, ILLINOIS.-

SAFET'Y ATTACHMENT FOR FOOT STAMPING AND OTHER PBESSES.

Specification of Letters Patent.

Application filed May 15, 1913. Serial No. 767,845.

To all whom it may concern Be it known that I, lVAL'rEn W. SHI'N'SKI,

a citizen of the United States, residing at La Salle in the county of LaSalle and State of Illinois, have invented a nonand useful SafetyAttachment for Foot Stamping and other Presses; and I do hereby declarethe following to be a full, clear and exact do scription of the invenion, such as will i'lb able others skilled in the art to which it uppertains to make and use the same.

This invention relates to :in automatic safety de ice, particularlyadaptable for use in connection with foot operzitcd stomping or otherand the like, whereby in jury to the hands of the operator is prevented.

As an object of the invention. it the aim to provide an automaticoperating safety vice, which comprincs; a guard or detector. whichthrown in advance of the punch or press pl. """JB'. end in the ward ordo tector 1 other ol...-l.ruc...-on (whiw'h. may ha pen to be in the pmhoi the plun 1: or punchl the punch Fill he 1 i on operating, but

' 3. no ubsarunion is en t or the irivcntinn is. the pr adapted to be.operated by 0 permit the gnte ygua or .W' ion in .y once yr. 2e. certainrlise goteencountere an such .2 the opei'otons hand. or foot lever mnrotbe operated (:tion is encountered. llw links "which :,-oouer the orguard to the press 'wifl a tuate the safety catch from the path or n logof u clamp carried on the loot lever, thereby allowing the foot lever tobe further nctimtml, which in turn v i actuate the pun-2h. or 'ilungcrto its con etc movement. Then when the foot lever is lowered, said meme.which allows the gate or guard to fell gravitattion, will raise the gateor guard to normnl position, While a spring will iestoro the safetywitch lever to its normal. position ii. engagement- With the lug of theclump on the foot lever.

In practical fields it may be found essentiul and necessary to subi'eotthe minor details oi' construction of t 1e improved aut matic safetydevice to alterations, to which tions full within the scope of what isclaimed.

Patented July 28, 1914.

The invention comprises further features and combination of parts, ashereinafter set forth, shown in the drawings and claimed.

In. the drawings :--Figure l is a view in side elevation, showing theimproved auto matic so fety device as applied to a stumping machine orother press, in its raised or normal position. 2 is a view in. sideelevation. showing the foot lever as having been partly operated, andthe gate or guard lowered to a certain distance, and which hasencountered an oliistruetion, such as the operators hand. Fig. 3 is adetail view of the gate or guru-cl. Fig. 4 is a view in side elevation,slim g" the foot lever completely mieerl mail the {rate or guard ordetector fully thr w. i. Fig. 5 is an enlargedmletail view of the twopart safety catch lever. Fig. (3 u alztilll perspective view of theclampc irriuil by the foot lever.

Referring more pmticulurly to the drawings, l designates the usual formof press, damping or umching machine, which is "3li(l with the necessarypress or punch plunger 2, n the lower end of which the iseuul punch orother device (not shown.) is adapted to we secured, by virtue of the setscrew "lliie machine is provided with the in rlinuvy toot lever ladaptedto actuate the plunger when raised, which foot lever may he actuated inany suitable manner (not shownl Secured to one taco of the standard ofth stamping or other press machine is a plate 5, which is of the sha ecorresponding to the shape of the stan ard, as shown c .urly in 1 to 4inclusive. This plate is provided with a laterally extending boss 6,into which is screwed lM-t T on which one end of the link la. pi oted.Mounted upon the bolt between the link 8 and the boss 6 is a sleeve 9thereby holdinc; the link offset from said plate 5, there being a washer10 between the head of the bolt 7 and the link 8. Projecting laterallyfrom the face of said plate at its upper porti on is second. boss 11,into which a screw 12 is threaded. This screw 12 passes through one oftwo apertures 13 in one end of the link lever 14. Mounted in the end 1Fof the link 8 is a rod 16, which passes through the bracket bearing 17,which are bolted or otherwise secured at 19 to the gate,

the patentee is entitled, provided the altcrn A Q'uard or detector 20.The bracket bearii i) int lT are arranged between the head l' the r dll) .:!l(l the end lil ol the The upper end ol' the luackei hea:

provided with an ear :l, t i end :53 of the link lever ll is planted h vthe crew bolt zli. t \.i|l ill olrl'ikeil u examining Fig. l of thedrawing; that u hen the loot lever is in its normal position with thegale or guard raised. the link H and l l act to throw the lower end portHl oi the gate or guard in toward the standard of the stamping orpunching machine or press. On examining Fig. l. liiwviwer, it will benoted that the links t and ll tend to throw the gate or guard ordetector outwardly at. its lower end. The inward and outward prsitionsof the lower end of the gate or e'uard may be regulated by thljlhtlllifthe screw 12 in the other aperture 13 of the link lever ll, Alsoprojectile: laterally from the plate 5 and threaded therein is a bolt onwhi h the safety eateh lever 2 is pivoted. 'lhis catch lever itcomprises two arms 30 and Ill extending at angles t one another.Connecting betwe n the arm Ill, as at 21" an-l the stud 2525 of theplate 5 is a sprint! Ill, the purpos oi which will hereinafter appear.

The arm 3'. c nzfvrises two paris 2L! and S the adjacent la es of whichare provided with teeth 37, which interen jay'e, when the two parts areclamped together by the bolt 38, that is. clamped zea' ther in adjuacdpositi ns. The bolt; is carried by the part 33, and passes through aslot, :19 of the part 3th lily the provision of the slot 3:), the part36 is permitted to he ad eued. (llaniped by means of a set screw ll) tothe foot lever is a clamp 41, from one face of which a lug 42 and a pinor stud lil roject. When the foot lever is in its normal position, withthe gate or guard raised, as shown in Fig. 1, the lug engages partly inthe notch 45 of the part. 36 of th catch lcver.- As will be observed inFig. 1 while the fool; lever is in its normal position. there is aslight space or clearance between the lire and the upper end of thenoieh 45. so that the foot lever i'nay he actuated slightly, in orderthat the gate or guard may be actuated downwardly partly Hm"- ever. onoperating the gate r guard downward and encoluitering an instruction,the loot level will be prevei' ed from further operating, owingto thenose 46 of the lug or dog 42 coming in c inact with the upper end orportion of the notch 4.5. Also pivoted upon the bolt a hell crank lever47, the arm 48 of which is pro\ idcd with a lug 4 which lies under andin the path of the link 8, and acts to support the link 8 in its upperposition, as shown in Fig. 1, as well as in a. partly lowered position.The arm 50 of the hell crank lever is connected to the pin or stud 43 bythe link 51, as at nan tin:

'lhrcaded through the link 8 is a screw 51-, held in adjusted positionsb the nut 55.

The phfie 3 is secured to the standard of the 1 inning or punching;machine by the screws 5r.

lfpon riising or operating the foot lever. thrreln throwing the arna 43of the bell eranl: lever 47 dmvnward, which allows the link S and theflute or guard to lower by ,e'rzn itation. 'lie screw ill will contactwith the arm Ill. of the safety catch lever, that is, provided noobstruction is encountered by the gate or guard. thereby throwing thearm l including the part 36 forwardly, with the notch l5 out of the pathof the lug l2. whieh ill neriuit the foot lever to complete itsmovement, in order to operate the pun h or ])lt, S plunger. lvhcn thefoot lever is again lowered or restored fiLltS normal p sition. thelinks 5 and 14 are raised lfl 'lilllillfj the guard or gate, by virtueof the lug l" of the arm "8. When the gate and 14 are being r dclcctorand the links 5 l'UlUl'Ul to their upper })O -lil )l1S, the action ofthe spring 3t restores the safety catch lever to its normal position.\Vhcn the gate or .euaril is lowered to its fullest extent, as shown inFig. 4. the link 8 rests upon the. bracket 553. secured by screws 59 toa por- (i n or" the standard of the stain in or prer=-ing machine.

The invention having); heen set forth, what is claimed as new and usefuli:

l. in combination with a punching machine having an operating l'ool;lever, 11 grzu v actuated gate rarricd by th ma chine. and a mechanismbetween said gate and the lever to support the note when the le\er is inits normal position. said mechanism adapted to be actuated by the footlever when raised to prevent the gate. from falling by gravitation toits fullest extent, said mechanism including a device adapted to heactuated when said grate completes part oi its n'ioveinenli to permitthe foot lever to he completely raised or operated.

2. in combination with a punching Inachine having an operating! footlever, a gravity actuated gate carried by the machine. and a mechanismbetween said gate and the lever to support the gate when the lever is inits normal position, said mechanism adapted to be actuated by the footlever when raised to prevent the gate from falling by gravitation to itsfull limit, said inechanisn'i including a safety catch device to pi-mentsaid foot lever from completing its movement in case the gate encountersan obstruction.

3. In combination with a punching machine ha *ing an operating footlever, a gravity actuated gate carried by the machine, and ai'necl'ianisui between said gate and the lever to support the gate whenthe lever is in its normal position, said mecha- A nism adapted tobeactuatedfby the foot 2, device carried b gateencounters no obstruction.a-

4. In combination with a; pufiithing machine having an operating *footlever, a gravity actuated gate carriedfhy the =machine, and a mechanismbetween said gate and the lever to support the gate when the lever is inits normal position, saidmecha nism adapted to be actuated. by the footlever when raised to prevent the gate from falling by gravitation toitsfull -limit, said mechanism including a safety catch device to preventsaid foot lever ,from completing its movement in casethe gateencounters. an obstruction, links connecting said gate .a to thestandardof the punching machine, and an adjustable device to permit the footlever to completeits movement in-case the gate encounters noobstruction, and means to restore the safety device, when the gate' israised and the foot leverrestored to its normal position.

5. comb nation" with a punching ma:

chine having'an operating foot lever, a

supporting plate secured to the standard of r the machine, agravityactuated detector gate, links connecting said gate to the plate,

a clamp having a lateral lug adjustably.- carried by thefoot lever, abell crank "lever V pivoted on said plate and having link con- -40nections with said clamp and adapted to 1rd engage-oneof said links tosupport the gate in a raised position against gravitation when the footlever is in its normal posit on, I said bell crank lever constitutingmeans 'a-ctuatedby the foot lever when raised-t0 permit the link and thegate to fall by gravi tation for a certain distance, a safety catch]lever pivoted on said plate adapted to engage the lug of-the clampto-j-prevent' the foot lever from completing its full inovement,provided the gate encounters an ob-. I struction, an adjustable devicecarried by one of said links to-aetuate saidfsa'fety" catch lever fromthe path of said lug to permit the foot leverv to complete its full amovement, provided no obstruction is encountered, and means forrestoring -sa1dsafety catch lever to its normal position when the gateis raisedtp In testimony whereof I have signed my name to thisspecification in the'prescnce-of 'two subscribing witnesses;

WALTER W. SHINSKL Witnesses:

' W. G. BROWN,

W. E. Jormsom.

